This hobby will never die. You can never take away the human minds ability to want to create. And even if the hobby did "die" it would only go in the direction of backwards and that would mean right back to balsa and glue. But for that to happen is going to be tough. Remember the RC hobby industry is more then a billion dollar one (tower does 500 mm a year alone) and they are expanding. So even if some people lose interest that will on force the industry to spend more on marketing ... which with the profit that build into hobby products, it won't be that hard. One thing is for sure ... people will ALWAYS buy on advertisements no matter if it's a Pet Rock or Levi's jeans, especially us materialistic Americans. So you can rest easy ... this hobby isn't going anywhere for a very long time.